Improvement in knob-latches



UNITED :ST'rEs MILTON C. NI'LES- AND SIDNEY S. NILES, OF CHICAGO, ILLINOIS.

lKNOB-Larci-nes.

Speciation forming part of Letters Patent No. 192,344; dated June 26, 1877;app1ication filed JanuarylB, 1877.'

To' all whom it may conce-rn:

Be it known that we, MILTON O. ANILES and SIDNEYS.'N'ILES,'-of Chicago,1in the county of Cook and State of Illinois, have invented a new and useful Improvement in Door-Locks and Knobs, `which is fully set forth in vthe following SpeGicatiOn, reference being had to the accompanying drawings, in which- 4Figure l 'represents aplan view of thelockcase, with the back platerern'oved 'to expose the inclos'eddevices;l Fig. 2, atransverse'section through the lockand door, the knobshanks being shown in full; Figs. 3 and 4,' detail views ofthe knob-Shanks 5 Fig. 5, a side view'of the 'spindle-tube ;l Fig. 6,- 'an end view of the ring clamping-nut; Fig. `7,a plan'view of a devicefor holding the tube iu placeiin the lock; Fig'.8, a sectional viewof'athi-mblescrewv for holding therosein place; Fig. 9, an edge 'view of thevibrating lever for operating the bolt; Fig. 10,-an edge view of the lreciprocating bars which operate the bolt-lever; Fig.1l^,'a plan view ofthe roseyFig.' 12, a 'plan view ofathimblescrewfor holding the tube in place; Fig. 13, a plan view vof the bolt; Fig. 14, an`r edge view of 'thestoplcatch Fig. 15, aplan viewof--a section of thelockplate, showingthe methodof fastening the device illustrated-by Fig. 7 and Figs. 16 and 17,- detail' viewsV of a safety attachment to'prevent 'the'u'se of keys except lwith va 4peculiar construction.

Our invention Y'relates to various devices and 'combinations of devices,all-of which will be hereinafter morefully'fset forth.

' In thcldrawings, A represents a `lock-case of ordinary construction, except thatitis'provided with lugs wat the front end, to which the facelplate A is attached by s'crewsfpassing 'through the holesl a', so that'it may be re moved at' pleasure from the case either'before or after the 'latter has been inserted in the door, Ythe 'screws being made, -if desired, of sufficient length to entert-he'doorrto hold the lockin place in itsrno'rtise.

The lock-case is perforated* to receive a tube, B, which is provided with a screw-thread cut upon its surface, vand 'is cutaway at the center; as "sho wn in Figs 5 of thedrawings, fto re-v ceive the ends of the bars upon which ythe spindle'isto operate. Itis also provided with a 'fixed lllange, b, on -one side of the notch which is located in suchposition that' when it strikes the lock -plate' inpassing the tube through the case the latterwill be in proper working position. fA notch, '111, is Ieut in the edge of the iiange' b, which engageswitha pin, b2, on the plate of'thel'l'oek-case, vas shown in Fig. l5 of the drawings, and prevents the tube from turning in the case.

Another-method of fastening thetubeis to provide a projection, 1,` on one'side ofthe flange, as shown in Fig. 7 ofthe drawings, and pass a screw, 2, through it into the 'case,=as shownin FigJ-Z ofthe-drawings.

Ascrew-threaded thimble, G, isturned 'upon theother end-of thctube Brand jammed against the opposite plate of the case, Aas sho'wn'in Fig. 2 of the drawings, byE means of which,=in connection with the'angefb, *the tubeis held from moving longitudinally. The interior of the lthimble G is cut away somewhat at'the outer end,-so as tomake ashouL der'or 'rabbet, 0,1 and leave an annular space between the thimble and the-tube, as shown iny Fig. 2 of the drawing.

\ The knob-Shanks D are made of a size=toit into thetube B, and are elongated, so as 'to meet near the center of the latter. The-end of each islpartially-cut away=tofforma shoulder, d, so that when the two vshanks are joined, as shown 1in Fig. 2 of the drawings, and adjusted torbringthev lshoulders on the same side of the tube, they will together make the =camfofa cylinder composed of the two knob-Shanks, 'which performs thefun'ctions of the ordinary spindle. On the inner end of oncof the knob-shanksvis a small threaded projection, d1, and=in the corresponding end of the other shank ahole is made, Whichis' also threaded, so as to receive the end-screw'dl. The shanks are Einsertedaopposite ends of the' tubeat'ter it is placedin the lock-case; and screwed together, as shown in Fig-2 ofthe drawings, and arranged vtherein so'"thatthe notch in the cylinder will=be toward thefront end of the case.

If desired, an'ges d24 may be made upon the Shanks D, at suitable distances fromthe ends, to abut against the endsof the tube"B,-fand prevent the shanks `from slipping-endwi'se when screwed togetherv Within ithe tube.

e leasen Within the case are one or two sliding bars E, the rear ends of which are enlarged and forked, as shown in Fig. l of the drawings, each fork having a shallow depression, c, in its end. Two blocks, E', are fastened to the lock-case on each side of the enlarged ends of the bars E, and serve as guides to the latter.

The sliding bars are arranged within the case, so that the enlaged ends will enter the opening cut in the side of the tube B, and rest against the cam produced by the joining of the two shoulders d ofthe knob-shank, the forks embracing the reduced central projection or core d1, to permit the ends to come back against the cam, the upper and lower edges of which rest in the upper and lower recesses e, respectively. Short circular slots e are cut in the other ends of the bars E.

A lever, F, is pivoted within the case near its center, and is provided with a pin, f, at its upper end, the ends of which enter the slots c', respectively, of the bars E, the upper end of the lever entering between the latter for this purpose.

The case is provided -with an ordinary spring-bolt, G, which has a recess, g, cut in one side, within which is fitted the lower end of the pivoted lever F.

It is evident that as the knobs are turned the inner portion of their shanks, which take the place of the ordinary spindle, will push forward the bar or bars E, thereby throwing forward the upper end of the pivoted lever F, which will vibrate the lower end in the opposite direction, and thus throw back the bolt.

A stop-piece or catch, H, is fitted within the lock-case, just in front of the forward ends of the bars E. The lower portion of this plate is cut away on one side to form a recess, It, and upon a suitable support below the stop is a spring, h1, which holds the former up so that this recess is opposite the outside bar E. The upper end of the stop H has a stud, 71.2, which projects out through a slot in the end plate, and by means of it the stop may be pushed down until the enlarged upper end comes opposite the bar E, thereby preventing the reifrocation of the latter to push back the The upper end of the stop H is constructed with offsets, as shown in Fig. l of the drawings, and just above it is arranged a sliding spring-stop or catch, I, which is provided with a head, z', with oifsets corresponding to those on the upper end of the stop-bar H. When the stop-bar is depressed the lock or catch I springs forward, and holds it in this position, the forward end of the catch projecting through a hole in the face-pate of the case. When it is desired to release the stopbar the catch I is pushed back, and the bar is forced up by its spring.

It is not necessary to employ more than one sliding bar, E, to secure the operation thus far described but if it is desired to construct the lock so as to stop the operation of the bolt from the outside, while leaving it free to be reciproeated by the inside knob, two bars, E,

-are employed, and a second recess, h3, is cut upon the inside face of the stop-bar H somewhat longer than the recess h on the opposite side, so that when the stop His depressed, as described above, the inside bar E will still be free to slide back and forth in the recess h3, and the method of fastening' the knobs t0- gether, heretofore described, permitting the turning of one independently of the other; it is evident that the bolt may be forced back bythe inside knob while the outside one is iocked.

The roses J are made with a perfectly plain face, and with projections j upon the inside, if desired, which are forced Ainto the door to prevent them from turning. They are held in place upon the knob-Shanks by means of thimble-screws K, which are made to screw upon the outer ends of the tube B, and are provided with shoulders k, which fit over the roses upon the outside when turned up sufciently, as shown in Figs. 2 and 8 of the drawings.

A small block, L, is placed within the case A just opposite the lower part of the key-hole. This block is constructed with flanges l, the outer edges of which are cut with different wards to suit keys with differently-shaped bits. The block is adjusted so that the appropriate ward will be in position for its corresponding key to pass through, as shown in Fig. l of the drawings, and a lock provided with this block is capable of use with bolt- 1 keys of different construction 5 but with only the one to which the ward-block is especially adjusted in any one door, thereby making ita safety-lock.

It is evident that not all of the devices described above are absolutely necessary to each other.

The construction of the knob-Shanks so as to perform the function of the ordinary spindle, and thereby dispense with the latter as a separate piece, for instance, is adapted to be used with devices for operating the bolt different from those heretofore shown and described, as well as several of the other devices mentioned. But we have shown in this application a combination of the devices which we consider necessary to make a cheap, safe, and durable lock, uniting all lthe requirements in door-locks at the present time.

With a lock thus constructed the detachable face-plate is an important feature, for some of the devices are inserted in the case after it is put into thedoor, and with the knob-Shanks, constructed as described, the lock cannot be removed from the door Without first removing the end plate and pulling forward the sliding bars so that the knob-Shanks may be removed. The bolt and actuating'devices are also reversible.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

l. The knob-Shanks D, elongated to enter the lock-ease, connected together at their inner ends Within the case, and cut away to form a cam at their junction, whereby the bolt is operated, substantially as and for the purpose set forth. o

2. The elongated knob-shanks D, provided with shoulders d at their inner ends, and connected together by the threaded core d', substantially as described.

ranged to abut against the lock-ease within the mortise of the door, and a fastening device, whereby the tube is secured rigidly in position, substantially as and for the purpose set forth.

5. The tube B, in combination with the xed flange b, having a notch, b1, and the pin b2 on the lock-plate, substantially as and for the purpose set forth.

6. A knob-spindle, provided with a central cam, d, in` combination with the two reciproeating bars E, pivoted lever F, and bolt G, substantially as and for the purpose set forth.

7. The knob-shanks'D, in combination with the two reciprocating bars E, and the slidestop H, provided with recesses h and h3, substantially as and for the purpose set forth.

8. The sliding spring-stop H, in combination With the spring-catch I, substantially as described.

9. The threaded tube B, provided with a stop-ange, b, abutting against the lock-plate, in combination with the independent roses J and the shouldered screw-rings K, al1 arranged and operating substantially as described.

l0. The adjustable block L, provided with anges l, having Wards to accommodate keys with different bits, substantially as and for the purpose set forth.

MILTON C. NILES. SIDNEY S. NILES.

Witnesses:

L. A. BUNTDIG, L. M. HARRIS. 

